JAMA Neurol:非痴呆人群脑内动脉粥样硬化不会导致认知衰退

2019-12-25 MedSci MedSci原创

研究认为,在非痴呆症人群中,颅内动脉粥样硬化斑块或狭窄与脑β-淀粉样蛋白沉积无关

颅内动脉粥样硬化性疾病(ICAD)是脑卒中的重要病因,近年来也被认为是全因性痴呆的重要危险因素,但其与认知功能的关系尚不完全清楚。

300名70-90岁无痴呆症的成年人接受脑florbetapir正电子发射断层扫描(ARIC-PET)研究,通过高分辨率血管壁磁共振成像显示颅内动脉粥样硬化病变的存在、频率和狭窄程度以评估ICAD与认知的关系。

300名受试者,平均年龄76岁,132名非裔美国人,167名女性,94名携带载脂蛋白E 4等位基因。在105名参与者(35%)中发现了ICAD,与颅内斑块人群相比,斑块人群皮质标准化摄取值比率(SUVR)较高(1.34 vs 1.27)。在校正模型中,ICAD的存在(OR:1.20)和频率(1.10)与SUVR的升高无显著相关性。此外,颅内血管中度狭窄(定义为>50%狭窄)与SUVR升高无关(aOR:2.33)。

研究认为,在非痴呆症人群中,颅内动脉粥样硬化斑块或狭窄与脑β-淀粉样蛋白沉积无关。

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    2020-01-19 yinhl1978
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  4. [GetPortalCommentsPageByObjectIdResponse(id=1944634, encodeId=a0f21944634ba, content=<a href='/topic/show?id=411de6300ad' target=_blank style='color:#2F92EE;'>#粥样硬化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76300, encryptionId=411de6300ad, topicName=粥样硬化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b30d401, createdName=huangshifeng, createdTime=Wed Nov 11 15:09:00 CST 2020, time=2020-11-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2000946, encodeId=78ac2000946e0, content=<a href='/topic/show?id=d5df12695e6' target=_blank style='color:#2F92EE;'>#Neurol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12695, encryptionId=d5df12695e6, topicName=Neurol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8217292, createdName=yinhl1978, createdTime=Sun Jan 19 19:09:00 CST 2020, time=2020-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1553693, encodeId=1c6f15536931e, content=<a href='/topic/show?id=52399126814' target=_blank style='color:#2F92EE;'>#认知衰退#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=91268, encryptionId=52399126814, topicName=认知衰退)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c45614401041, createdName=朱睿睿, createdTime=Fri Dec 27 10:09:00 CST 2019, time=2019-12-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1035843, encodeId=2dec103584347, content=顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=旺医, createdTime=Wed Dec 25 22:09:00 CST 2019, time=2019-12-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1048586, encodeId=eda81048586b3, content=老年人痴呆何药可用??, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=junJUN, createdTime=Wed Dec 25 22:09:00 CST 2019, time=2019-12-25, status=1, ipAttribution=)]
    2019-12-25 旺医

    顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息

    0

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    2019-12-25 junJUN

    老年人痴呆何药可用??

    0

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